TED

I don't know why it was named TED.

Anyway, it is still one of the more worthwhile websites you can visit today.

TED features videos of the presentations  of the many speakers which grace TED conferences. These speakers are often the movers and shakers of their respective industries and, in these presentations, they share something about themselves and their passions.

Some presentations are interesting, some are funny or provocative, while others are simply inspiring.

Here's the link to the site.